See English internationals such as Steve Borthwick and David Strettle go head to head with Irish greats including Brian O’Driscoll.
As well as the action on the pitch, UK hip hop star Tinie Tempah will perform tracks from his album Disc-Overy before the game.
We’ve got five pairs of tickets to this exciting game to give away.
To be in with a chance of winning, send your name and contact details to firstname.lastname@example.org and tell us who your favourite rugby player is in the comments below. Entry closes at midnight on 10 October 2010.
Saracens vs Leinster at Wembley Stadium takes place on 16 October 2010. If you’re not lucky enough to win, you can still buy tickets online, from just £5 for under 16s and £10 for adults.